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Sun, 18 Oct 2020 05:21:14 +0000 From: Tuong Lien To: dsahern@gmail.com, jmaloy@redhat.com, maloy@donjonn.com, ying.xue@windriver.com, netdev@vger.kernel.org Cc: tipc-discussion@lists.sourceforge.net Subject: [iproute2-next 1/2] tipc: add option to set master key for encryption Date: Fri, 16 Oct 2020 23:02:00 +0700 Message-Id: <20201016160201.7290-2-tuong.t.lien@dektech.com.au> X-Mailer: git-send-email 2.26.2 In-Reply-To: <20201016160201.7290-1-tuong.t.lien@dektech.com.au> References: <20201016160201.7290-1-tuong.t.lien@dektech.com.au> Content-Transfer-Encoding: 8bit Content-Type: text/plain X-Originating-IP: [113.20.114.51] X-ClientProxiedBy: AM4PR07CA0009.eurprd07.prod.outlook.com (2603:10a6:205:1::22) To AM8PR05MB7332.eurprd05.prod.outlook.com (2603:10a6:20b:1db::9) MIME-Version: 1.0 X-MS-Exchange-MessageSentRepresentingType: 1 Received: from dektech.com.au (113.20.114.51) by AM4PR07CA0009.eurprd07.prod.outlook.com (2603:10a6:205:1::22) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.3499.11 via Frontend Transport; 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X-MS-Exchange-AntiSpam-MessageData: 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 X-OriginatorOrg: dektech.com.au X-MS-Exchange-CrossTenant-Network-Message-Id: 9933b084-0e1c-4ae0-8da1-08d87325a247 X-MS-Exchange-CrossTenant-AuthSource: AM8PR05MB7332.eurprd05.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Internal X-MS-Exchange-CrossTenant-OriginalArrivalTime: 18 Oct 2020 05:21:14.8498 (UTC) X-MS-Exchange-CrossTenant-FromEntityHeader: Hosted X-MS-Exchange-CrossTenant-Id: 1957ea50-0dd8-4360-8db0-c9530df996b2 X-MS-Exchange-CrossTenant-MailboxType: HOSTED X-MS-Exchange-CrossTenant-UserPrincipalName: PGc/eYNU/si9PY9K7SgwSKOrNGyZJo/N5m33zU+BrBMcNs2KPUB54VYZ0gnojLG7WiKx8yQ6RNDb+RPrMeK0Zo+eBxihpmKuuc6wPAKk6b8= X-MS-Exchange-Transport-CrossTenantHeadersStamped: AM0PR05MB4131 Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org In addition to the support of master key in kernel, we add the 'master' option to the 'tipc node set key' command for user to be able to specify a key as master key during the key setting. This is carried out by turning on the new netlink flag - 'TIPC_NLA_NODE_KEY_MASTER'. For example: $ tipc node set key "this_is_a_master_key" master The command's help menu is also updated to give a better description of all the available options. Acked-by: Jon Maloy Signed-off-by: Tuong Lien --- tipc/node.c | 46 +++++++++++++++++++++++++++++----------------- 1 file changed, 29 insertions(+), 17 deletions(-) diff --git a/tipc/node.c b/tipc/node.c index ffdaeaea..1ff0baa4 100644 --- a/tipc/node.c +++ b/tipc/node.c @@ -160,19 +160,21 @@ static int cmd_node_set_nodeid(struct nlmsghdr *nlh, const struct cmd *cmd, static void cmd_node_set_key_help(struct cmdl *cmdl) { fprintf(stderr, - "Usage: %s node set key KEY [algname ALGNAME] [nodeid NODEID]\n\n" + "Usage: %s node set key KEY [algname ALGNAME] [PROPERTIES]\n\n" + "KEY\n" + " Symmetric KEY & SALT as a composite ASCII or hex string (0x...) in form:\n" + " [KEY: 16, 24 or 32 octets][SALT: 4 octets]\n\n" + "ALGNAME\n" + " Cipher algorithm [default: \"gcm(aes)\"]\n\n" "PROPERTIES\n" - " KEY - Symmetric KEY & SALT as a normal or hex string\n" - " that consists of two parts:\n" - " [KEY: 16, 24 or 32 octets][SALT: 4 octets]\n\n" - " algname ALGNAME - Default: \"gcm(aes)\"\n\n" - " nodeid NODEID - Own or peer node identity to which the key will\n" - " be attached. If not present, the key is a cluster\n" - " key!\n\n" + " master - Set KEY as a cluster master key\n" + " - Set KEY as a cluster key\n" + " nodeid NODEID - Set KEY as a per-node key for own or peer\n\n" "EXAMPLES\n" - " %s node set key this_is_a_key16_salt algname \"gcm(aes)\" nodeid node1\n" - " %s node set key 0x746869735F69735F615F6B657931365F73616C74 nodeid node2\n\n", - cmdl->argv[0], cmdl->argv[0], cmdl->argv[0]); + " %s node set key this_is_a_master_key master\n" + " %s node set key 0x746869735F69735F615F6B657931365F73616C74\n" + " %s node set key this_is_a_key16_salt algname \"gcm(aes)\" nodeid 1001002\n\n", + cmdl->argv[0], cmdl->argv[0], cmdl->argv[0], cmdl->argv[0]); } static int cmd_node_set_key(struct nlmsghdr *nlh, const struct cmd *cmd, @@ -187,24 +189,21 @@ static int cmd_node_set_key(struct nlmsghdr *nlh, const struct cmd *cmd, struct opt opts[] = { { "algname", OPT_KEYVAL, NULL }, { "nodeid", OPT_KEYVAL, NULL }, + { "master", OPT_KEY, NULL }, { NULL } }; struct nlattr *nest; - struct opt *opt_algname, *opt_nodeid; + struct opt *opt_algname, *opt_nodeid, *opt_master; char buf[MNL_SOCKET_BUFFER_SIZE]; uint8_t id[TIPC_NODEID_LEN] = {0,}; int keysize; char *str; - if (help_flag) { + if (help_flag || cmdl->optind >= cmdl->argc) { (cmd->help)(cmdl); return -EINVAL; } - if (cmdl->optind >= cmdl->argc) { - fprintf(stderr, "error, missing key\n"); - return -EINVAL; - } /* Get user key */ str = shift_cmdl(cmdl); @@ -230,17 +229,30 @@ static int cmd_node_set_key(struct nlmsghdr *nlh, const struct cmd *cmd, return -EINVAL; } + /* Get master key indication */ + opt_master = get_opt(opts, "master"); + + /* Sanity check if wrong option */ + if (opt_nodeid && opt_master) { + fprintf(stderr, "error, per-node key cannot be master\n"); + return -EINVAL; + } + /* Init & do the command */ nlh = msg_init(buf, TIPC_NL_KEY_SET); if (!nlh) { fprintf(stderr, "error, message initialisation failed\n"); return -1; } + nest = mnl_attr_nest_start(nlh, TIPC_NLA_NODE); keysize = tipc_aead_key_size(&input.key); mnl_attr_put(nlh, TIPC_NLA_NODE_KEY, keysize, &input.key); if (opt_nodeid) mnl_attr_put(nlh, TIPC_NLA_NODE_ID, TIPC_NODEID_LEN, id); + if (opt_master) + mnl_attr_put(nlh, TIPC_NLA_NODE_KEY_MASTER, 0, NULL); + mnl_attr_nest_end(nlh, nest); return msg_doit(nlh, NULL, NULL); } -- 2.26.2